NTSCGEWOU 3.6/6kV, 6/10kV, 8.7/15kV, 12/20kV Cable
The NTSCGEWOU 3.6/6kV, 6/10kV, 8.7/15kV, 12/20kV Cable is a high-performance flexible medium-voltage trailing/reeling cable engineered for extreme mining and tunneling conditions. It comprises class 5 finely stranded tinned copper phase conductors for superior flexibility and corrosion resistance, semi-conductive conductor and insulation screens for field control, EPR insulation for excellent dielectric strength and 90°C continuous operation, copper wire braid screen for EMI protection and grounding, control conductors, monitoring conductor (ÜL), and a durable rubber outer sheath resistant to oil, flame, abrasion, tearing, and mechanical stress. Compliant with DIN VDE 0250, it handles high tensile loads, fast reeling speeds, tight bending radii, and effective EMC shielding across all voltage levels. The NTSCGEWOU delivers safe, reliable MV power to mobile equipment such as shearers, tunnel boring machines, draglines, and conveyors in harsh underground and opencast environments, minimizing downtime and ensuring long-term operational efficiency.
- Voltage Rating Uo/U 3.6/6kV | 6/10kV | 8.7/15kV | 12/20kV
-
Test Voltage
3.6/6kV: 11kV
6/10kV: 17kV
8.7/15kV: 24kV
12/20kV: 29kV - Maximum Torsional Stress (°/m) ± 25
- Minimum Bending Radius Fixed: 6 x overall diameter
- Maximum Short Circuit Temperature +250°C
- Maximum Working Speed (m/min) 20
- Mobile Condition -25°C to+ 80°C
- Static Condition -40°C to+ 80°C
- Maximum Torsional Stress ±25°/m
Construction
Technical Specifications
Quality Control
Application
Construction
NTSCGEWOU 3.6/6kV, 6/10kV, 8.7/15kV, 12/20kV Cable Constrution
Phase Conductor
Class 5 flexible stranded tinned copper
Insulation
Rubber compound
Earth Conductor
Class 5 tinned copper conductor
Central Filler
Semi-conductive compound on a polyester textile support
Inner Sheath
Rubber compound
Anti-Torsion Braid
Polyester
Outer Sheath
Rubber compound
Sheath Colour
Yellow
Manufacturer Standard
VDE 0250 Part 813, HD 22.16, VDE 0295, EN 60228
Flame Retardant
IEC/EN 60332-1-2
Note
(N)TSCGEWOU ATB is available with Anti-Torsion Braid
Semi-Conductive Layers
Semi-conductive tape over the conductor and inner and outer
Semi-conductive rubber layer on the insulation
Semi-conductive rubber layer on the insulation
Application
NTSCGEWOU 3.6/6kV, 6/10kV, 8.7/15kV, and 12/20kV cables are used for fixed power distribution in mining operations and along material handling systems. They are suitable for both indoor and outdoor environments, offering reliable performance under tough conditions.
Technical Specifications
NTSCGEWOU 3.6/6kV, 6/10kV, 8.7/15kV, 12/20kV Cable
NTSCGEWOU 3.6/6kV Cable
NTSCGEWOU 6/10kV Cable
NTSCGEWOU 8.7/15kV Cable
NTSCGEWOU 12/20kV Cable
|
No. Of Cores |
Nominal Cross Sectional Area mm² |
CONDUCTOR DIAMETER |
NOMINAL OVERALL DIAMETER |
MAXIMUM TENSILE LOAD |
NOMINAL WEIGHT |
|
|
Phase Conductor |
Earth Conductor |
mm | mm | N | kg/km | |
| 3+3 | 25 | 25/3 | 6.9 | 39.7 | 1500 | 2380 |
| 3+3 | 35 | 25/3 | 7.8 | 43.7 | 2100 | 2920 |
| 3+3 | 50 | 25/3 | 9.3 | 46.8 | 3000 | 3520 |
| 3+3 | 70 | 35/3 | 11.1 | 50.7 | 4200 | 4430 |
| 3+3 | 95 | 50/3 | 12.7 | 56.7 | 5700 | 5580 |
| 3+3 | 120 | 70/3 | 14.5 | 60.5 | 7200 | 6770 |
| 3+3 | 150 | 70/3 | 16.7 | 67.15 | 9000 | 8260 |
| 3+3 | 185 | 95/3 | 17.6 | 69 | 11100 | 9400 |
|
No. Of Cores |
Nominal Cross Sectional Area mm² |
CONDUCTOR DIAMETER |
NOMINAL OVERALL DIAMETER |
MAXIMUM TENSILE LOAD |
NOMINAL WEIGHT |
|
|
Phase Conductor |
Earth Conductor |
mm | mm | N | kg/km | |
| 3+3 | 25 | 25/3 | 6.9 | 39.7 | 1500 | 2380 |
| 3+3 | 35 | 25/3 | 7.8 | 43.7 | 2100 | 2920 |
| 3+3 | 50 | 25/3 | 9.3 | 46.8 | 3000 | 3520 |
| 3+3 | 70 | 35/3 | 11.1 | 50.7 | 4200 | 4430 |
| 3+3 | 95 | 50/3 | 12.7 | 56.7 | 5700 | 5640 |
| 3+3 | 120 | 70/3 | 14.5 | 60.5 | 7200 | 6830 |
| 3+3 | 150 | 70/3 | 16.7 | 70.3 | 9000 | 8320 |
| 3+3 | 185 | 95/3 | 17.6 | 69 | 11100 | 9500 |
|
No. Of Cores |
Nominal Cross Sectional Area mm² |
CONDUCTOR DIAMETER |
NOMINAL OVERALL DIAMETER |
MAXIMUM TENSILE LOAD |
NOMINAL WEIGHT |
|
|
Phase Conductor |
Earth Conductor |
mm | mm | N | kg/km | |
| 3+3 | 25 | 25/3 | 6.8 | 45.5 | 1500 | 2860 |
| 3+3 | 35 | 25/3 | 7.8 | 47 | 2100 | 3210 |
| 3+3 | 50 | 35/3 | 9.3 | 50.3 | 3000 | 3830 |
| 3+3 | 70 | 50/3 | 11.1 | 55.9 | 4200 | 5000 |
| 3+3 | 95 | 70/3 | 12.7 | 59.3 | 5700 | 5870 |
| 3+3 | 120 | 70/3 | 14.5 | 65 | 7200 | 7370 |
| 3+3 | 150 | 95/3 | 16.7 | 69.7 | 9000 | 8590 |
| 3+3 | 185 | 25/3 | 17.6 | 71.8 | 11100 | 9750 |
|
No. Of Cores |
Nominal Cross Sectional Area mm² |
CONDUCTOR DIAMETER |
NOMINAL OVERALL DIAMETER |
MAXIMUM TENSILE LOAD |
NOMINAL WEIGHT |
|
|
Phase Conductor |
Earth Conductor |
mm | mm | N | kg/km | |
| 3+3 | 25 | 25/3 | 6.9 | 47.2 | 1500 | 3080 |
| 3+3 | 35 | 25/3 | 7.8 | 52.6 | 2100 | 3460 |
| 3+3 | 50 | 35/3 | 9.3 | 54.6 | 3000 | 4310 |
| 3+3 | 70 | 50/3 | 11.1 | 58.4 | 4200 | 5310 |
| 3+3 | 95 | 70/3 | 12.7 | 61.9 | 5700 | 6180 |
| 3+3 | 120 | 70/3 | 14.5 | 67.5 | 7200 | 7730 |
| 3+3 | 150 | 95/3 | 16.7 | 72.2 | 9000 | 8970 |
Quality Control
NTSCGEWOU 3.6/6kV, 6/10kV, 8.7/15kV, 12/20kV Cable
Raw Material Test
Raw Material Test for NTSCGEWOU 3.6/6kV, 6/10kV, 8.7/15kV, 12/20kV Cable ensures premium MV-grade materials for mining reliability. The rigorous process includes: Supplier Certification Review: Verify class 5 tinned copper meets DIN EN 60228/IEC 60228 for purity (>99.9% Cu), stranding, and tin coating; EPR insulation and rubber sheath compounds certified to VDE 0250 for multi-voltage performance. Conductor Analysis: Test tinned copper for tensile strength (>200 MPa), elongation (>20%), conductivity (≥97% IACS), and tin layer uniformity to withstand corrosion and mechanical stress. Semi-Conductive & Insulation Testing: Semi-conductive layers checked for resistivity, adhesion, and compatibility; EPR insulation evaluated for tensile (>6.5 MPa), elongation (>300%), dielectric strength (>20 kV/mm), and thermal aging per IEC 60502, scaled to 3.6/6kV up to 12/20kV ratings.
Process inspection
Process Inspection during manufacturing of NTSCGEWOU 3.6/6kV, 6/10kV, 8.7/15kV, 12/20kV Cable maintains precision for multi-voltage integrity. Steps include: Conductor Stranding: Monitor fine class 5 stranding of phase/control/monitoring conductors for uniform lay length, compactness, and flexibility. Layer Extrusion: Apply semi-conductive screens and EPR insulation at controlled thicknesses; inline scanners, spark testers, and eccentricity monitors detect voids or defects across voltage configurations. Screening & Assembly: Braid copper wires for earth/screening with precise coverage/tension; integrate control and monitoring conductors. Outer Sheath Extrusion: Apply robust rubber sheath; real-time checks on thickness, surface finish, and adhesion to ensure sealing and durability. Continuous Monitoring: Track conductor resistance, insulation integrity, screen continuity, overall diameter, and voltage-specific parameters throughout production.
Finished Product
Finished Product Test confirms the NTSCGEWOU 3.6/6kV, 6/10kV, 8.7/15kV, 12/20kV Cable meets MV standards before shipment. The procedure includes: Visual & Dimensional Inspection: Examine full length for defects, uniformity, markings, and measure outer diameter/weight per meter across all voltage variants. Electrical Tests: Perform DC resistance, insulation resistance (>1000 MΩ·km), high-voltage withstand (11kV for 3.6/6kV, 17kV for 6/10kV, 24kV for 8.7/15kV, 29kV for 12/20kV/5 min), partial discharge, and screen/monitoring continuity per VDE/IEC. Mechanical Evaluation: Test bending radius (6–8× OD), tensile strength, abrasion, tear, and torsional resistance to simulate mining conditions. Sheath & Insulation Performance: Verify oil immersion, flame retardancy (IEC 60332), thermal aging, and moisture resistance for long-term durability.
Application
The NTSCGEWOU 3.6/6kV, 6/10kV, 8.7/15kV, 12/20kV Cable is ideal for underground/opencast mining trailing/reeling systems, tunnel boring machines, coal cutters, heavy mobile equipment connections, conveyor power feeds, and switchgear links requiring flexible, screened MV cable with monitoring in high-mechanical-stress environments.
Technical Advantages
● 30+ years of manufacturing experience
● ISO and UL certified production
● Customized cable and transformer solutions
Product Packaging
Wires and Cables packaging (1)
Wires and Cables packaging (2)
Wires and Cables packaging (3)
Wires and Cables packaging (4)
Wires and Cables packaging (5)
Wires and Cables packaging (6)
Wires and Cables packaging (7)
Wires and Cables packaging (8)
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What are the advantages of power cables and overhead lines?(1) Reliable operation, because it is installed in a hidden place such as underground, it is less damaged by external forces, has less chance of failure, and the power supply is safe, and it will not cause harm to people; (2) The maintenance workload is small and frequent inspections are not required; (3) No need to erect towers; (4) Help improve power factor.
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Which aspects should be considered when choosing the cross section of a power cable?(1) The long-term allowable working current of the cable; (2) Thermal stability once short circuited; (3) The voltage drop on the line cannot exceed the allowable working range.
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What are the measures for cable fire prevention?(1) Use flame-retardant cables; (2) Use fireproof cable tray; (3) Use fireproof paint; (4) Fire partition walls and fire baffles are installed at cable tunnels, mezzanine exits, etc.; (5) Overhead cables should avoid oil pipelines and explosion-proof doors, otherwise local pipes or heat insulation and fire prevention measures should be taken.
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What should be paid attention to during the transportation and handling of cables?(1) During transportation, loading and unloading, cables and cable reels should not be damaged. It is strictly forbidden to push the cable reels directly from the vehicle. Generally, cables should not be transported and stored flat. (2) Before transporting or rolling the cable reel, ensure that the cable reel is firm, the cable is wound tightly, the oil pipe between the oil-filled cable and the pressure oil tank should be fixed without damage, the pressure oil tank should be firm, and the pressure indication should meet the requirements.
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What inspections should be carried out for the acceptance of cable lines?(1) The cable specifications should meet the regulations, the arrangement should be neat, no damage, and the signs should be complete, correct and clear; (2) The fixed bending radius of the cable, the related distance and the wiring of the metal sheath of the single-core power cable should meet the requirements; (3) The cable terminal and the middle head should not leak oil, and the installation should be firm. The oil pressure of the oil-filled cable and the meter setting should meet the requirements; (4) Good grounding; (5) The color of the cable terminal is correct, and the metal parts such as the bracket are completely painted; (6) There should be no debris in the cable trench, tunnel, and bridge, and the cover should be complete.
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